A surrealist piece by Max Ernst. A sculpture of various figures in violent poses. What is the name of the piece above?

You didn't include the picture, but after some searching I think that 'The Barbarians' is most likely the piece of art, but again, not 100% sure :)

it demonstrate the egyptian kingdom love for the natural world

this is beacause beside the hippos blue gaze,the body was painted with the outlines of river plants, which symbolizing the marshes in which the animal lived. the figurine of the hippo named willian originates from the middle kingdom during the 12th dynasty.

i believe the correct answer is: must sculpture be beautiful to be considered art?

the aesthetics represents the exploring of beauty and taste of nature in art, with the creation and appreciation of beauty. having that in mind, i believe the appropriate aesthetic question you could ask about gianlorenzo bernini’s sculpture david is “must sculpture be beautiful to be considered art? ”.